Tonini, Tiziana and D'Andrilli, Giuseppina and Fucito, Alfredo and Gaspa, Leonardo and Bagella, Luigi Marco (2008) Importance of Ezh2 polycomb protein in tumorigenesis process interfering with the pathway of growth suppressive key elements. Journal of Cellular Physiology, Vol. 214 (2), p. 295-300. eISSN 1097-4652. Article.
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An understanding of the mechanisms that uncover the dynamic changes in the distribution of the chromatin modifying enzymes and regulatory proteins on their target loci could provide further insight into the phenomenon of malignant transformation. Based on the current available data, it seems more and more clear that an abnormal expression of Ezh2, a member of the Polycomb group (PcG) protein, may be involved in the tumorigenesis process, in addition, different studies identify Ezh2 as a potential marker that distinguish aggressive prostate and breast cancer from indolent one. Recent investigation show that ectopic expression of Ezh2 provides proliferative advantage to primary cells through interaction with the pathways of key elements that control cell growth arrest and differentiation, like members of the retinoblastoma (Rb) family. Here, we outline how these pathways converge and we review the recent advances on the molecular mechanisms that promote cell cycle progression through deregulation of Ezh2 protein level, providing novel links between cancer progression and chromatin remodeling machineries.
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